Home / 12,214.71-16,857.14-6,909.53

Finding the Fourth Proportional to 12,214.71, 16,857.14 and 6,909.53

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Solution

The fourth proportional to 12,214.71, 16,857.14 and 6,909.53 is: 9,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.71 : 16,857.14 = 6,909.53 : x
  2. Step 2: Convert to fraction form
    12,214.71/16,857.14 = 6,909.53/x
  3. Step 3: Cross multiply
    12,214.71x = 16,857.14 × 6,909.53
  4. Step 4: Simplify right side
    12,214.71x = 116,474,795.71
  5. Step 5: Solve for x
    x = 116,474,795.71/12,214.71
  6. Step 6: Final answer
    x = 9,535.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.